Built in 1898, the Chickasaw National Capitol Building in Tishomingo was the Chickasaw's government seat until Oklahoma statehood in 1907. Upon statehood, the Chickasaw Nation was forced to vacate the Capitol, which became a Johnston County courthouse in 1910. With its historic significance and unique architecture, the Capitol was added to the National Register of Historic Places in 1971.

In 1992, the Chickasaw Nation repurchased the Capitol from Johnston County. No longer used for government business, the first and second floors now house exhibit space. Guests can view a recreation of Chickasaw Governor Douglas Johnston's office and the National Secretary's vault in their 1898 form. Other interesting items on display include the Chickasaw governors portrait exhibit, a gift shop in the first floor reception area and a rotating photography exhibit on the second floor.

Outside the Capitol, visit The Chickasaw National Well Exhibit, completed in 2006. Visit the Chickasaw National Capitol in Tishomingo and experience Chickasaw history firsthand. Tours are available upon request and large groups are asked to make tour reservations in advance.